Job's agony goes far beyond his physical wounds, revealing a relentless internal storm that consumes both his body and mind. This deep distress highlights the painful gap between his peaceful past and his bitter present. His inner being is in a state of constant boiling, completely unable to find rest or silence from the turmoil [רש״י, רלב״ג, מלבי״ם, מצודת ציון]. The primary approach among commentators views this as a vivid picture of severe physical and emotional suffering. A feverish illness burns inside him without a single pause, while poverty and hardship trap him from the outside [מלבי״ם, ביאור שטיינזלץ]. This intense worry robs him of any peace, dulling his senses and making the world appear entirely dark and gloomy [תקות אנוש]. Furthermore, the days of suffering seem to stand right in front of him, constantly waiting and ready to strike [מצודת ציון, ביאור שטיינזלץ].
In contrast, another perspective understands this internal boiling not as a physical disease, but as a profound moral pain. In the past, Job felt intense compassion and pity for the struggles of others, to the point where his own insides churned with empathy [מצודת דוד, מצודת ציון]. From this viewpoint, his current cry is a protest against a deep sense of injustice. He prayed for his friends in their times of pain, and spiritual principles suggest that one who begs for mercy for another should be answered first by God. Job expected to be blessed for his deep care, but reality slapped him in the face. Instead of receiving goodness, days of poverty and agony rushed ahead to strike him first [אלשיך, מצודת דוד].